The technique of chirped pulse amplification (CPA) has become the important method to get high power of femtosecond laser pulse.
啁啾脉冲放大(CPA)作为获得高功率飞秒激光脉冲的关键技术日益成熟。
By using femtosecond laser, the off-resonant third-order optical nonlinearity of the compound was measured with degenerate four-wave mixing technique.
采用飞秒激光，运用简并四波混频法，研究了化合物在非共振状态下的三阶非线性光学性能。
The transient time-resolved reflectivity of chromium film is studied by femtosecond pump-probe technique with a 70-fs laser.
本文通过采用70飞秒的泵浦-探测技术研究了铬膜的时间分辨的反射率的变化。
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